EEW, gross!

3 of my chickens excitedly ran over to see something in the grass....I walked over too, and noticed one of the chickens is spitting up stuff. GROSS! I gave them a piece of apple earlier. I just put them all back in their coop together. I guess I'll just watch and make sure she doesn't throw up again.

Reassure me, please? LOL. I've only ever had a chicken throw up once before, and it was after I'd been having to chase her after she drank water....which is understandable.